Self-opening-closing flow-adjustable low-pressure pipeline irrigation water outlet

Abstract

The invention relates to a self-opening-closing flow-adjustable low-pressure pipeline irrigation water outlet. A pipe body consists of an inner pipe and an outer pipe; the top of the inner pipe is sealed, a pair of water outlet holes is symmetrically distributed on the side wall of the upper part of the inner pipe, and a pair of latches is symmetrically arranged on the outer side wall of the bottom of the inner pipe; a pair of large guide slide grooves, a pair of small guide slide grooves and a pair of limiting blocks are uniformly distributed on the inner side circumference of the outer pipe, the guide slide grooves are respectively of a pi-shaped projection consisting of two convex ribs and limiting latches, and the latches of the inner pipe can slide between the two convex ribs; and when in normal use, the inner pipe is pressed down and rotated, three marker lines, i.e. 0, 1 / 2 and 1, at the top of the inner pipe are selected to be respectively overlapped with the marker lines of the outer wall of the outer pipe, so that the option settings of zero water outlet locking, semi-hole water outlet and entire-hole water outlet can be completed. The self-opening-closing flow-adjustable low-pressure pipeline irrigation water outlet is simple in structure, the factorized production can be realized, the plastic production cost is low, the quality is stable and reliable, the occupied floor can be saved when in installation and use, the market space is wide, and when the self-opening-closing flow-adjustable low-pressure pipeline irrigation water outlet is popularized to use, the economic benefit, the social benefit and the environmental benefit are relatively high.

Description

technical field [0001] The invention relates to a low-pressure pipeline irrigation water outlet, in particular to a low-pressure pipeline irrigation water outlet with adjustable self-opening and closing flow. The water outlet is a farmland irrigation facility, which is used in rural water conservancy projects and is mainly installed on the low-pressure water delivery pipeline in the field. Background technique [0002] The water outlet (also known as the water supply cock) is mainly used for the water outlet part of the pipeline for low-pressure pipeline water delivery and irrigation in farmland. Generally, the main shape is a 90° right-angle elbow shell. The lower pipe is the water inlet section connected to the water pipe, and the upper elbow is the water outlet section. The lower end of the pressure rod is connected to the gland, and the upper end is vertically exposed to the casing, and the water output can be adjusted by rotating the upper screw rod. [0003] In actua...

AI Technical Summary

Problems solved by technology

[0003] In actual operation management: (1) When opening and closing and adjusting the water output, it is necessary to manually rotate the screws one by one, and it takes time and effort to irrigate the field; (2) When the water is not used, if the water outlet is not closed, it will be messy. It is easy for objects to enter the underground pipeline system and affect the safe operation of the entire pipeline network; (3) Water is discharged through a right-angled lateral 90° elbow, which occupies more farmland and brings hidden dangers to farm machinery field operations; (4) The structure is complex, and the aperture is generally ≤ DN160

The connection between the vertical screw and the horizontal flapper gland is troublesome, and it is also the most vulnerable part to be damaged by water pressure

Images